In my continuing search of new places I find myself in the heart of Serbia tonight (blue X"). On my way here, after crossing the border from Romania, I stopped for directions and looked up to see a sign "Iron Curtain Trail". The image shows its 3,300 km length, of which I traveled 140 km (between red dots) along the beautiful and amazingly wide Danube - dwarfs the Mississippi here! Serbia is nowhere near as properous as other EU countries but it appears to be working toward that goal. As a result, I saw today a blend of depressed and afluent areas. And a lot of construction...